I must be missing something.
My fastri founds much less documentation than ri.

Shell output follows:

   piastrella:~$ fastri-server -b
   Building index.
   Indexed:
   * 7565 methods
   * 1316 classes/modules
   Needed 1.764042 seconds
   piastrella:~$ fastri-server
   Looking for Ring server...
   No Ring server found, starting my own.
   fastri-server 0.0.1 (FastRI 0.1.1) listening on druby:// 
127.0.0.1:49772
   ACL:
   deny  all
   allow 127.0.0.1
   ^Z
   [1]+  Stopped                 fastri-server
   piastrella:~$ bg
   [1]+ fastri-server &
   piastrella:~$ fri find|wc -l
          3
   piastrella:~$ ri find|wc -l
         53
   piastrella:~$ uname -a
   Darwin piastrella.local 8.8.0 Darwin Kernel Version 8.8.0: Fri  
Sep  8 17:18:57 PDT 2006; root:xnu-792.12.6.obj~1/RELEASE_PPC Power  
Macintosh powerpc
   piastrella:~$ ruby -v
   ruby 1.8.5 (2006-08-25) [powerpc-darwin8.8.0]

I'm using Mac OS X 10.4.8.
Both fastri and ruby should be up to date.

Could it be because Mac OS X has a broken installation of ruby by  
default, and it's usually installed a new version in /usr/local as  
[1] says? It's even suggested by Apple itself ([2]).
Maybe fastri is confused about where to look.
I've just read other response in this thread, but I couldn't find  
anything like this: am I the only Mac user who tried fastri within  
this mailing list?

Anyway, how do I fix this? :)

[1]: http://hivelogic.com/articles/2005/12/01/ 
ruby_rails_lighttpd_mysql_tiger
[2]: http://developer.apple.com/tools/rubyonrails.html